D.L. Hughley: Clothes Break the ManLast week, Geraldo Rivera got into it with his comments on the Trayvon Martin killing. What Rivera said was insidious -- but like most insidious comments, there is an element of truth to them.

Tim Hanstad: Catalytic Potential of Land RightsLike the bicycle. Sweeping change is often sparked by the most unlikely, seemingly small, ideas and items. This week at the Skoll Forum, in Oxford, 1,000 people from around the world have been given a sneak peek at the newest of them.